Which of the following statements is FALSE?

a. Cdk7 of the CAK (TFIIH component) phosphorylates Cyclin 8 of the Mediator to down regulate promoter activity.
b. TFIIF (RAP74 RAP30) show similarity to sigma 70 domains 2 and 3.
c. TFIIF has affinity for the zinc-ribbon at the N-terminus of TFIIB.
d. Archaea have a factor nearly identical to TFIIB called TFB.
e. Mediator binds the CTD of RNA pol II when the CTD is hypophosphorylated and leaves when the CTD becomes hyperphosphorylated.

Answer is A. Cdk7 of the CAK (TFIIH component) phosphorylates Cyclin 8 of the Mediator to down regulate promoter activity.

Refer below.

Explanation:

Cdk7 of the CAK (TFIIH component) phosphorylates Cyclin 8 of the Mediator to down regulate promoter activity is a FALSE STATEMENT.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.